Drugs

Drug |I | |INTRODUCTION | Drug, substance that affects the function of nutrition cells, use in medicine to diagnose, cure, prevent the occurrence of diseases and disorders, and preserve the disembodied spirit of patients with incurable conditions. Since 1900 the availability of new and more than effective medicines such(prenominal) as antibiotics, which fight bacterial infections, and vaccines, which prevent diseases caused by bacteria and viruses, has increased the average Americans feel twosome from about 60 years to about 75 years. Drugs strike vastly improved the quality of life. Today, medicines have contributed to the annihilation of in one case widespread and sometimes shameful diseases such as infantile paralysis and smallpox. |II | | sort | Drugs can be classified in many meanss: by the way they ar administerover the counter or by prescription; by the substance from which they are derive dplant, mineral, or animal; by the systema skeletale they takecapsule, liquid, or gas; and by the way they are administeredby mouth, injection, inhalation, or direct activity to the skin (absorption). Drugs are also classified by their finds.

all told doses have third names: a chemical name, which describes the little structure of the medicate; a generic or proprietorship name, which is the official medical checkup name assigned by the United States Adopted put forward Council (a group peaceful of pharmacists and other scientists); and a filth or trade name given by the particular manufacturer that sells the drug. If a telephoner holds the patent on a drugthat is, if the com pany has the liquid ecstasy right to make a! nd sell a drug, then the drug is available under one brand name only. after the patent expires, typically after 17 years in the United States, other companies can also manufacture the drug and market it under the generic name, or give it a new brand name. Another way to categorize drugs is by the way they act against diseases or disorders: chemotherapeutic drugs attack precise organisms that cause a disease...If you want to possess a encompassing essay, order it on our website: OrderEssay.net

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